Percentage Calculator – Fast & Accurate % Calculations
Multi-mode percentage tool supporting 6 modes with live worked examples.
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About the Percentage Calculator – Fast & Accurate % Calculations
Percentages express a fraction or proportion of 100. Our percentage calculator offers 6 distinct modes to solve any percentage problem instantly.
Core Percentage Formulas
X% of Y = (X / 100) × Y
X as % of Y = (X / Y) × 100%
Percentage Increase = ((Y - X) / X) × 100%
Percentage Difference = (|X - Y| / ((X + Y) / 2)) × 100%
Worked Step-by-Step Examples
Example: What is 20% of $150?
1. Convert 20% to decimal: 20 / 100 = 0.20 2. Multiply by 150: 0.20 × 150 = 30. Result: $30.00
Frequently Asked Questions
Subtract the original value from the new value, divide by the original value, and multiply by 100.